MKC87DCA03

NTSB accident investigation · Burkholder Q-2 · St Charles, MO · August 8, 1987

Accident · Serious injuriesFinal report
Date
August 8, 1987, 11:20 local (16:20 UTC)
Place
St Charles, MO
Injuries
1 serious, 1 minor
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N3891PBurkholder Q-2
Weather
Visual (VMC) · Day
Status
Completed · report January 11, 1989
Report
Approved by Office Director
FAA report
19870808043179A
Case key
34260

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of engine power(partial) - mech failure/malfTakeoff - initial climb
Engine assembly,push rod - disengagedCause
Maintenance - improperOther maintenance personnelCause
Forced landingDescent - emergency
Nose overLanding
Terrain condition - cropFactor
Terrain condition - softFactor

Analysis

Drg takeoff, the eng began to run rough at an estd alt of 50 to 100 ft AGL & would not developed enough power to maint flt. Subsequently, as the plt was lndg in a soybean field, the acft flipped over & came to rest in an upright attitude. A teardown of the eng revealed the push rod for the left forward exhaust valve had become disengaged (mis- aligned) from its respective rocker arm socket, allowing the exhaust valve to remain in the closed position. The revmaster/vw eng had a total flt time of 76.5 hrs.

Aircraft

Registration
N3891P
Reported as
Burkholder Q-2
Category
Airplane, amateur-built
Serial number
2163
Airframe hours
77
Engine
Revmaster 2100, 65 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
J. William Burkholder
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Unknown · December 1, 1986 · 77 hours before
Destination
CPS · Cahokia, IL
Airport
35Z · St Charles Co, runway 18, 3,800 × 75 ft, asphalt

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
28
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
323 total · 77 in this make and model · 375 as pilot in command · 10 in the last 90 days · 8 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
160° at 12 knots
Visibility
7 statute miles
Lowest ceiling
25,000 ft broken
Temperature
88 °F, dew point 73 °F
Altimeter
29.00 inHg
Observed at
SUS, 19 nm away

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.